The Kink Senec PC pedals are made from a proprietary blend of nylon and fiberglass material with 11 molded pins per side for traction and a unique bearing-less spindle system with oversized hollow chromoly spindles for maximum strength and durability. Installs with a 6mm Allen key or 3/8" ratchet head. 9/16" (15.3 oz)
Note: 1/2" fits 1-pc cranks. 9/16" fits 3-pc cranks.